The total cost of the dishwasher, the food processor and the sandwich maker is $480. The sandwich maker costs thrice as much as the food processor. The dishwasher costs twice as much as the total price of the sandwich maker and food processor. How much less does the sandwich maker cost than the dishwasher?
| Sandwich Maker |
Food Processor |
Dishwasher |
| 3 u |
1 u |
|
| 4 u |
8 u |
| 3 u |
1 u |
8 u |
Cost of the food processor = 1 u
Cost of the sandwich maker = 3 u
Total cost of the food processor and the sandwich maker
= 1 u + 3 u
= 4 u
Cost of the dishwasher
= 2 x 4 u
= 8 u
Total cost of the sandwich maker, the food processor and dishwasher
= 8 u + 1 u + 3 u
= 12 u
12 u = 480
1 u = 480 ÷ 12 = 40
Amount that the sandwich maker cost less than the dishwasher
= 8 u - 3 u
= 5 u
= 5 x 40
= $200
Answer(s): $200
